I have read a bunch of entries both in this and countless other forums concerning this issue: DotNetNuke (5.0.1) on discountasp.net hosting server with IIS6 running.

After a million tries I now turn to you guys for help. I followed the discountasp's own steps : support.discountasp.net/KB/a390/how-to-install-dotnetnuke-4x-on-discountaspnet-servers.aspx and upon completion I try to run "mywebpage.com/dotnetnukeInstall". Firstly it gives me this(after turning of customerrors):

Server Error in '/Community' Application.

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Configuration Error

Line 88:       <add name="DNNMembership" type="DotNetNuke.HttpModules.Membership.MembershipModule, DotNetNuke.HttpModules" />
Line 89:       <add name="Personalization" type="DotNetNuke.HttpModules.Personalization.PersonalizationModule, DotNetNuke.HttpModules" />
Line 90:       <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
Line 91:     </httpModules>
Line 92:     <httpHandlers>

Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053

I googled this finding a dubious solution(I never had to do this before): <remove name=ScriptModule /> just before the second scriptmodule entry in web.config.

This certainly solved the problem above, but gives me this error:

Server Error in '/Community' Application.

---

Unable to cast object of type 'System.Web.Configuration.ScriptingAuthenticationServiceSection' to type 'System.Web.Configuration.ScriptingAuthenticationServiceSection'.

[InvalidCastException: Unable to cast object of type 'System.Web.Configuration.ScriptingAuthenticationServiceSection' to type 'System.Web.Configuration.ScriptingAuthenticationServiceSection'.]
   System.Web.Configuration.ScriptingAuthenticationServiceSection.GetConfigurationSection() +39
   System.Web.Security.AuthenticationService.EnsureConfigLoaded() +93
   System.Web.Handlers.ScriptModule.ShouldSkipAuthorization(HttpContext context) +85
   System.Web.Handlers.ScriptModule.AuthenticateRequestHandler(Object sender, EventArgs e) +52
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Now this I just cant find a solution to and I hope someone here has had the same experience and hopefully you were a bit smarter or/and patient than me.

Thanks to anyone taking time to read this post.

Regards

Espen

It appears that you have a host that is using ASP.Net 3.5 Framework.

More info here: http://forums.asp.net/p/1171570/1971496.aspx

You probably need to update your web.config like the answer shows in that thread above,

which is what I suspect happens in Host>Host Settings when you upgrade to 3.5 Framework, but you probably can't get to that page.

This solved it for me. Thanks a million.